Tankless water heater housing



FIG. 1 is a front perspective view of the tankless water heater housing of the new design;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a back view thereof;

FIG. 9 is a front perspective view thereof with the front housing door in an open position;

FIG. 10 is a top view thereof with the front housing door in an open position; and,

FIG. 11 is a front view thereof with the front housing door in an open position.

In the figures, features shown by broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a tankless water heater housing, as shown and described. 